/* roulang page: index */
:root{
  --brand-900:#0C2B22;
  --brand-700:#14513F;
  --accent:#C9F24D;
  --accent-ink:#12210A;
  --warm:#FF7A45;
  --bg:#FBFAF6;
  --bg-alt:#F2F1EA;
  --line:#E4E2D8;
  --text:#22302B;
  --text-2:#6C7A73;
  --white:#FFFFFF;
  --radius-card:18px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(12,43,34,.05);
  --shadow-2:0 12px 28px rgba(12,43,34,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gutter:24px;
  --section-gap:clamp(64px,9vw,128px);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

.container-x{width:100%;max-width:1220px;margin:0 auto;padding:0 var(--gutter);}
@media (max-width:767px){:root{--gutter:16px;}}

.mono{font-family:var(--mono);text-transform:uppercase;letter-spacing:.16em;font-size:12px;}
.kicker{display:inline-block;color:var(--brand-700);font-weight:600;}
.section{padding:var(--section-gap) 0;}
.section-alt{background:var(--bg-alt);}
.section-dark{background:var(--brand-900);color:#DCE7E2;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:clamp(32px,4vw,56px);}
.section-head h2{font-size:clamp(26px,3.4vw,44px);font-weight:800;letter-spacing:-.02em;line-height:1.15;margin-top:10px;}
.section-head p{color:var(--text-2);max-width:56ch;margin-top:12px;}
.section-dark .section-head p{color:#A9BDB5;}
.link-more{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;white-space:nowrap;border-bottom:1px solid var(--line);padding-bottom:4px;}
.link-more i{transition:transform .22s var(--ease);font-size:13px;}
.link-more:hover{border-color:var(--accent);}
.link-more:hover i{transform:translateX(4px);}

/* Buttons */
.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);}
.btn-accent{background:var(--accent);color:var(--accent-ink);}
.btn-accent:hover{background:#D8FA6F;color:var(--accent-ink);transform:translateY(-2px);box-shadow:0 12px 28px rgba(12,43,34,.18);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.38);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
.btn-dark{background:var(--brand-900);color:#fff;}
.btn-dark:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-outline{background:#fff;border-color:var(--line);color:var(--text);}
.btn-outline:hover{border-color:var(--accent);color:var(--brand-900);transform:translateY(-2px);}
.btn-sm-x{padding:10px 20px;font-size:14px;}

/* Tags */
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:var(--radius-pill);background:var(--bg-alt);color:var(--text-2);font-size:12px;line-height:1.6;white-space:nowrap;}
.tag-accent{background:var(--accent);color:var(--accent-ink);font-weight:600;}
.tag-warm{background:rgba(255,122,69,.14);color:#B8420F;font-weight:600;}
.tag-ghost{background:rgba(255,255,255,.12);color:#DCE7E2;}

/* Header */
.site-header{position:sticky;top:0;z-index:1030;background:var(--brand-900);color:#fff;border-bottom:1px solid rgba(255,255,255,0);transition:height .22s var(--ease),border-color .22s var(--ease);}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .22s var(--ease);}
.site-header.is-scrolled{border-bottom-color:rgba(255,255,255,.12);}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--accent);color:var(--accent-ink);display:inline-flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0;}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:#fff;white-space:nowrap;}
.brand:hover .brand-text{color:var(--accent);}
.header-channels{display:none;align-items:center;gap:26px;margin-left:8px;}
.channel-link{position:relative;font-size:15px;letter-spacing:.02em;color:#D6E2DD;padding:6px 0;white-space:nowrap;}
.channel-link::after{content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;background:var(--accent);transition:left .22s var(--ease),right .22s var(--ease);}
.channel-link:hover{color:#fff;}
.channel-link:hover::after,.channel-link.is-active::after{left:0;right:0;}
.channel-link.is-active{color:#fff;font-weight:600;}
.header-tools{display:none;align-items:center;gap:16px;margin-left:auto;}
.header-search{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-pill);padding:0 16px;height:42px;transition:background .22s var(--ease),box-shadow .22s var(--ease);}
.header-search i{color:#9FB5AC;font-size:13px;}
.header-search input{background:transparent;border:0;outline:none;color:#fff;width:172px;font-size:14px;}
.header-search input::placeholder{color:#8FA79D;}
.header-search:focus-within{background:#fff;box-shadow:0 0 0 2px var(--accent);}
.header-search:focus-within i{color:var(--brand-700);}
.header-search:focus-within input{color:var(--text);}
.header-search:focus-within input::placeholder{color:var(--text-2);}
.header-login{font-size:15px;color:#D6E2DD;white-space:nowrap;}
.header-login:hover{color:var(--accent);}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);color:#fff;font-size:16px;cursor:pointer;}
.mobile-nav{background:var(--brand-900);border-top:1px solid rgba(255,255,255,.12);}
.mobile-nav-inner{padding:18px 0 26px;display:flex;flex-direction:column;gap:14px;}
.mobile-nav-inner a.m-link{font-size:16px;color:#D6E2DD;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;align-items:center;}
.mobile-nav-inner a.m-link.is-active{color:var(--accent);font-weight:600;}
@media (min-width:992px){
  .header-channels{display:flex;}
  .header-tools{display:flex;}
  .nav-toggle{display:none;}
  .mobile-nav{display:none !important;}
}
@media (max-width:1199px) and (min-width:992px){
  .header-search input{width:120px;}
  .header-channels{gap:18px;}
}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.55;}
.hero-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,43,34,.94) 0%,rgba(12,43,34,.78) 52%,rgba(12,43,34,.45) 100%);}
.hero-inner{position:relative;z-index:2;padding:clamp(64px,9vw,132px) 0 clamp(48px,6vw,88px);}
.hero-kicker{display:inline-flex;align-items:center;gap:10px;padding:7px 16px;border-radius:var(--radius-pill);background:rgba(201,242,77,.14);border:1px solid rgba(201,242,77,.34);color:var(--accent);font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;}
.hero h1{margin-top:26px;font-size:clamp(34px,5.4vw,64px);font-weight:800;line-height:1.14;letter-spacing:-.03em;max-width:19ch;}
.hero-sub{margin-top:22px;font-size:clamp(16px,1.6vw,19px);line-height:1.8;color:#C9D8D2;max-width:60ch;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:clamp(40px,5vw,64px);padding-top:28px;border-top:1px solid rgba(255,255,255,.18);}
.stat-num{font-family:var(--mono);font-size:clamp(20px,2.4vw,28px);font-weight:700;color:#fff;letter-spacing:.02em;}
.stat-label{margin-top:6px;font-size:12px;color:#A9BDB5;letter-spacing:.08em;}
@media (max-width:767px){
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:20px;}
}

/* Story rows (S3) */
.story-list{border-top:1px solid var(--line);}
.story-row{display:grid;grid-template-columns:120px 1fr 1.15fr;gap:32px;align-items:start;padding:34px 0;border-bottom:1px solid var(--line);transition:background .22s var(--ease),padding-left .22s var(--ease);}
.story-row:hover{background:var(--bg-alt);padding-left:16px;}
.story-num{font-family:var(--mono);font-size:13px;letter-spacing:.16em;color:var(--brand-700);padding-top:6px;}
.story-row h3{font-size:clamp(20px,2.2vw,24px);font-weight:700;letter-spacing:-.01em;}
.story-row p{color:var(--text-2);max-width:52ch;}
@media (max-width:991px){
  .story-row{grid-template-columns:70px 1fr;gap:18px;}
  .story-row p{grid-column:2;}
}
@media (max-width:575px){
  .story-row{grid-template-columns:1fr;gap:10px;padding:26px 0;}
  .story-row p{grid-column:1;}
}

/* Card grid (S4) */
.card-x{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:14px;height:100%;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);display:flex;flex-direction:column;}
.card-x:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--shadow-2);}
.card-media{display:block;position:relative;overflow:hidden;border-radius:var(--radius-img);aspect-ratio:3/2;background:var(--bg-alt);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .26s var(--ease);}
.card-x:hover .card-media img{transform:scale(1.03);}
.card-body-x{padding:18px 10px 10px;display:flex;flex-direction:column;gap:10px;}
.card-body-x h3{font-size:19px;font-weight:700;line-height:1.42;letter-spacing:-.01em;}
.card-body-x h3 a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body-x p{color:var(--text-2);font-size:14.5px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 10px 10px;color:var(--text-2);font-size:13px;}
.card-feature .card-media{aspect-ratio:16/9;}
.card-feature .card-body-x h3{font-size:clamp(22px,2.4vw,28px);-webkit-line-clamp:3;}
.card-feature .card-body-x p{-webkit-line-clamp:4;font-size:15.5px;}

/* News list (S5) */
.news-head-actions{display:flex;align-items:center;gap:18px;}
.news-list{border-top:1px solid var(--line);}
.news-row{display:grid;grid-template-columns:230px 1fr 132px;gap:28px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line);transition:background .22s var(--ease),padding-left .22s var(--ease);}
.news-row:hover{background:var(--bg-alt);padding-left:14px;}
.news-thumb{display:block;border-radius:var(--radius-img);overflow:hidden;aspect-ratio:3/2;background:var(--bg-alt);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .26s var(--ease);}
.news-row:hover .news-thumb img{transform:scale(1.03);}
.news-body{display:flex;flex-direction:column;gap:8px;min-width:0;}
.news-title{font-size:18px;font-weight:700;line-height:1.45;letter-spacing:-.01em;}
.news-title a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-row:hover .news-title a{color:var(--brand-700);}
.news-excerpt{color:var(--text-2);font-size:14.5px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-time{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--text-2);text-align:right;text-transform:none;}
.news-empty{min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;border:1px dashed var(--line);border-radius:var(--radius-card);background:#fff;padding:40px 24px;}
.news-empty i{font-size:26px;color:var(--brand-700);}
.news-empty p{color:var(--text-2);font-size:15px;}
@media (max-width:991px){
  .news-row{grid-template-columns:180px 1fr;gap:20px;}
  .news-time{grid-column:2;text-align:left;margin-top:2px;}
}
@media (max-width:575px){
  .news-row{grid-template-columns:92px 1fr;gap:14px;padding:18px 0;align-items:start;}
  .news-thumb{aspect-ratio:1/1;}
  .news-excerpt{display:none;}
  .news-time{grid-column:2;}
}

/* Trust (S6) */
.trust-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.trust-strip span{font-size:13.5px;color:var(--text-2);display:flex;align-items:center;gap:8px;}
.trust-strip i{color:var(--brand-700);font-size:12px;}
.quote-carousel{margin-top:clamp(36px,4vw,56px);}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:clamp(24px,3vw,38px);box-shadow:var(--shadow-1);}
.quote-card p{font-size:clamp(16px,1.7vw,19px);line-height:1.85;color:var(--text);max-width:64ch;}
.quote-who{margin-top:20px;display:flex;align-items:center;gap:12px;font-size:14px;color:var(--text-2);}
.quote-who .dot{width:34px;height:34px;border-radius:50%;background:var(--bg-alt);display:inline-flex;align-items:center;justify-content:center;color:var(--brand-700);font-size:13px;}
.quote-carousel .carousel-indicators{position:static;margin:22px 0 0;gap:8px;}
.quote-carousel .carousel-indicators [data-bs-target]{width:8px;height:8px;border-radius:50%;background:var(--line);border:0;opacity:1;}
.quote-carousel .carousel-indicators .active{width:24px;border-radius:var(--radius-pill);background:var(--brand-700);}
@media (max-width:991px){
  .trust-strip{grid-template-columns:repeat(2,1fr);gap:14px;}
}

/* FAQ */
.faq-wrap{max-width:900px;}
.faq-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);}
.faq-accordion .accordion-button{background:transparent;box-shadow:none;padding:22px 0 22px 22px;font-size:17px;font-weight:600;color:var(--text);position:relative;border-radius:0;}
.faq-accordion .accordion-button:focus{box-shadow:none;}
.faq-accordion .accordion-button::before{content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;border-radius:3px;background:transparent;transition:background .22s var(--ease);}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand-900);background:transparent;}
.faq-accordion .accordion-button:not(.collapsed)::before{background:var(--accent);}
.faq-accordion .accordion-button::after{background-image:none;content:"+";font-size:22px;font-weight:400;color:var(--brand-700);width:auto;height:auto;display:flex;align-items:center;justify-content:center;transform:none;line-height:1;}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"−";color:var(--brand-900);transform:none;}
.faq-accordion .accordion-body{padding:0 0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:68ch;}

/* Subscribe / CTA */
.cta-panel{background:var(--brand-900);color:#DCE7E2;border-radius:26px;padding:clamp(32px,4.4vw,64px);display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(28px,4vw,56px);align-items:center;}
.cta-panel h2{color:#fff;font-size:clamp(24px,3vw,38px);font-weight:800;letter-spacing:-.02em;line-height:1.2;}
.cta-panel p{margin-top:14px;color:#A9BDB5;max-width:52ch;}
.sub-form{display:flex;gap:12px;flex-wrap:wrap;}
.sub-form input{flex:1 1 220px;height:48px;border-radius:14px;border:1px solid var(--line);padding:0 18px;background:#fff;color:var(--text);outline:none;transition:box-shadow .22s var(--ease),border-color .22s var(--ease);}
.sub-form input::placeholder{color:var(--text-2);}
.sub-form input:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent);}
.form-note{margin-top:12px;font-size:13px;color:#8FA79D;}
@media (max-width:991px){
  .cta-panel{grid-template-columns:1fr;}
}

/* Footer */
.site-footer{background:var(--brand-900);color:#C9D6D0;padding:clamp(56px,7vw,88px) 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-text{font-size:18px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#9FB5AC;max-width:34ch;}
.footer-col h4{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#8FA79D;font-weight:600;margin-bottom:18px;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14.5px;color:#C9D6D0;display:inline-block;transition:color .22s var(--ease),transform .22s var(--ease);}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-qr{width:104px;height:104px;border-radius:14px;border:1px dashed rgba(255,255,255,.28);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:#8FA79D;font-size:12px;text-align:center;line-height:1.4;margin-top:4px;}
.footer-qr i{font-size:20px;color:var(--accent);}
.footer-bottom{margin-top:clamp(40px,5vw,64px);border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8FA79D;}
.footer-bottom a:hover{color:var(--accent);}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;}
}

/* Reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0C2B22;
  --brand-700:#14513F;
  --accent:#C9F24D;
  --accent-ink:#12210A;
  --warm:#FF7A45;
  --bg:#FBFAF6;
  --bg-alt:#F2F1EA;
  --line:#E4E2D8;
  --text:#22302B;
  --text-2:#6C7A73;
  --white:#FFFFFF;
  --radius-card:18px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(12,43,34,.05);
  --shadow-2:0 12px 28px rgba(12,43,34,.10);
  --container:1220px;
  --section-y:clamp(64px,9vw,128px);
  --ease:cubic-bezier(.2,.7,.3,1);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;line-height:1.75;letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;border-radius:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.22;letter-spacing:-.02em}
p{margin:0}
::selection{background:var(--accent);color:var(--accent-ink)}
:focus-visible{outline:2px solid var(--brand-700);outline-offset:2px}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono);font-size:12.5px;letter-spacing:.16em;text-transform:uppercase}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--brand-900);color:#fff;transition:box-shadow .22s var(--ease)}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(255,255,255,.10),0 10px 24px rgba(12,43,34,.18)}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;transition:height .22s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-size:15px}
.brand-text{font-size:17px;font-weight:800;white-space:nowrap;letter-spacing:-.01em}
.header-channels{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0}
.channel-link{position:relative;padding:9px 12px;font-size:15px;color:#C9D6D0;border-radius:10px;transition:color .2s var(--ease)}
.channel-link::after{content:"";position:absolute;left:50%;right:50%;bottom:2px;height:2px;background:var(--accent);transition:left .22s var(--ease),right .22s var(--ease)}
.channel-link:hover{color:#fff}
.channel-link:hover::after{left:12px;right:12px}
.channel-link.is-active{color:#fff;font-weight:700}
.channel-link.is-active::after{left:12px;right:12px}
.header-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.header-search{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);transition:background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.header-search i{font-size:13px;color:#9DB2AA}
.header-search input{width:148px;border:0;background:none;outline:0;font-size:14px;color:#fff}
.header-search input::placeholder{color:#9DB2AA}
.header-search:focus-within{background:#fff;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
.header-search:focus-within i{color:var(--text-2)}
.header-search:focus-within input{color:var(--text)}
.header-search:focus-within input::placeholder{color:#9AA8A1}
.text-link{font-size:14.5px;color:#C9D6D0;transition:color .2s var(--ease)}
.text-link:hover{color:var(--accent)}
.btn-accent{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 21px;border-radius:999px;background:var(--accent);color:var(--accent-ink);font-size:15px;font-weight:700;cursor:pointer;border:0;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,242,77,.28);background:#D6F86B}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 21px;border-radius:999px;border:1.5px solid rgba(255,255,255,.42);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--accent);color:var(--accent);background:rgba(201,242,77,.08)}
.btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:14px;border:1.5px solid var(--brand-700);color:var(--brand-700);font-size:15px;font-weight:600;cursor:pointer;background:var(--white);transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease)}
.btn-outline:hover{transform:translateY(-2px);background:var(--brand-700);color:#fff}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.10);color:#fff;cursor:pointer;place-items:center}
.mobile-drawer{display:none;border-top:1px solid rgba(255,255,255,.12);background:var(--brand-900);padding:18px 24px 24px}
.mobile-drawer.is-open{display:block}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.drawer-links a{padding:11px 12px;border-radius:12px;font-size:15.5px;color:#C9D6D0}
.drawer-links a:hover{background:rgba(255,255,255,.06);color:#fff}
.drawer-links a.is-active{background:rgba(201,242,77,.12);color:var(--accent);font-weight:700}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;padding:0 16px;border-radius:14px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14)}
.drawer-search input{flex:1;border:0;background:none;outline:0;font-size:15px;color:#fff}
.drawer-search input::placeholder{color:#9DB2AA}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{padding:18px 0 0;font-size:13.5px;color:var(--text-2)}
.breadcrumb-bar .sep{margin:0 9px;color:#BCC5BF}
.breadcrumb-bar a:hover{color:var(--brand-700)}
.breadcrumb-bar .current{font-weight:700;color:var(--text)}

/* ---------- hero ---------- */
.hero-cat{background:var(--brand-900);color:#fff;padding:clamp(36px,5vw,64px) 0 clamp(52px,7vw,88px);margin-top:6px}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:clamp(28px,4vw,56px);align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:rgba(201,242,77,.13);border:1px solid rgba(201,242,77,.32);color:var(--accent);font-size:12.5px;letter-spacing:.1em}
.hero-title{font-size:clamp(31px,4.5vw,54px);line-height:1.1;letter-spacing:-.03em;margin:20px 0 16px;font-weight:800}
.hero-title em{font-style:normal;color:var(--accent)}
.hero-sub{color:#C6D4CE;font-size:17px;max-width:54ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-media{border-radius:20px;overflow:hidden;aspect-ratio:16/10;box-shadow:0 18px 40px rgba(0,0,0,.28)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:clamp(34px,4.4vw,52px);padding-top:26px;border-top:1px solid rgba(255,255,255,.14)}
.stat-num{font-family:var(--mono);font-size:clamp(21px,2.5vw,30px);font-weight:700;color:var(--accent);letter-spacing:.02em}
.stat-label{margin-top:6px;font-size:12px;letter-spacing:.14em;color:#93A9A1}

/* ---------- section ---------- */
.section{padding:var(--section-y) 0}
.section-alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:clamp(26px,3.4vw,44px)}
.section-head h2{font-size:clamp(25px,3.3vw,40px)}
.section-desc{margin-top:12px;max-width:62ch;color:var(--text-2);font-size:16px}
.eyebrow-mono{display:block;margin-bottom:14px;font-family:var(--mono);font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--brand-700)}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand-700);white-space:nowrap}
.link-more i{transition:transform .2s var(--ease)}
.link-more:hover i{transform:translateX(4px)}
.link-more:hover{color:var(--brand-900);text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:5px}

/* ---------- filter ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;padding:14px;background:var(--white);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-1);margin-bottom:28px}
.filter-pill{height:38px;padding:0 18px;border-radius:999px;border:1px solid var(--line);background:var(--bg-alt);color:var(--text-2);font-size:14px;cursor:pointer;transition:transform .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease)}
.filter-pill:hover{transform:translateY(-2px);color:var(--brand-700);border-color:var(--brand-700)}
.filter-pill.is-active{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:700}

/* ---------- grids & cards ---------- */
.grid-8-4{display:grid;grid-template-columns:2fr 1fr;gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--accent)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.card-title{font-size:22px;line-height:1.36}
.card-title a:hover{color:var(--brand-700)}
.card-excerpt{margin-top:12px;color:var(--text-2);font-size:15.5px;line-height:1.8}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text-2)}
.card-meta .mono{color:var(--brand-700)}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--bg-alt);color:var(--text-2);font-size:12.5px;letter-spacing:.04em}
.badge-accent{background:var(--accent);color:var(--accent-ink);font-weight:700}
.badge-warm{background:rgba(255,122,69,.16);color:#BC4A1C;font-weight:700}
.stack{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.card-h{display:flex;gap:16px;padding:16px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-img);box-shadow:var(--shadow-1);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.card-h:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--shadow-2)}
.card-h .thumb{flex:0 0 92px;width:92px;height:92px;border-radius:12px;overflow:hidden;background:var(--bg-alt)}
.card-h .thumb img{width:100%;height:100%;object-fit:cover}
.card-h h3{font-size:16.5px;line-height:1.42;margin-top:8px}
.card-h h3 a:hover{color:var(--brand-700)}
.card-h p{margin-top:7px;font-size:13.5px;color:var(--text-2);line-height:1.7}
.card-h .h-meta{margin-top:10px;font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--brand-700)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.step{border-top:3px solid var(--accent);padding-top:20px}
.step-num{font-family:var(--mono);font-size:13px;letter-spacing:.16em;color:var(--brand-700)}
.step h3{font-size:19px;margin:12px 0 10px}
.step p{color:var(--text-2);font-size:15px;line-height:1.8}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-body-padding-x:0;--bs-accordion-body-padding-y:0}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.accordion-button{background:transparent;color:var(--text);font-size:17px;font-weight:600;line-height:1.6;padding:22px 8px 22px 0;border-radius:0;box-shadow:none;transition:color .2s var(--ease),padding-left .22s var(--ease)}
.accordion-button:hover{color:var(--brand-700)}
.accordion-button:not(.collapsed){color:var(--brand-900);background:transparent;border-left:3px solid var(--accent);padding-left:18px}
.accordion-button::after{content:"+";background-image:none;width:28px;height:28px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;font-size:15px;color:var(--brand-700);transition:transform .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease)}
.accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg);background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.accordion-body{padding:0 56px 26px 0;color:var(--text-2);font-size:15px;line-height:1.85}
.accordion-button:not(.collapsed) + .accordion-collapse .accordion-body{padding-left:21px}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 var(--section-y)}
.cta-band{background:var(--brand-900);color:#fff;border-radius:24px;padding:clamp(32px,4.6vw,60px);display:grid;grid-template-columns:1.35fr .65fr;gap:32px;align-items:center}
.cta-band h2{font-size:clamp(24px,3vw,36px)}
.cta-band p{margin-top:14px;color:#C6D4CE;font-size:16px;max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-note{margin-top:14px;font-size:13px;color:#93A9A1}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#C9D6D0;padding:clamp(48px,6vw,80px) 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand{color:#fff}
.footer-brand p{margin-top:16px;max-width:34ch;font-size:14.5px;line-height:1.85;color:#9DB2AA}
.footer-col h4{margin-bottom:16px;font-family:var(--mono);font-size:12.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:#8FA69E}
.footer-col li{margin-bottom:10px}
.footer-col a{display:inline-block;font-size:14.5px;color:#C9D6D0;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-qr{display:flex;align-items:center;gap:12px;margin-top:18px;padding:12px 14px;border:1px solid rgba(255,255,255,.14);border-radius:14px;font-size:12.5px;line-height:1.5;color:#9DB2AA}
.footer-qr i{font-size:26px;color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:clamp(36px,4vw,56px);padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#8FA69E}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .card:hover,.card-h:hover,.btn-accent:hover,.btn-ghost:hover,.btn-outline:hover,.filter-pill:hover{transform:none}
  .card:hover .card-media img{transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .header-search input{width:110px}
  .hero-grid{gap:32px}
}
@media (max-width:991px){
  .header-channels{display:none}
  .header-search{display:none}
  .nav-toggle{display:grid}
  .hero-grid{grid-template-columns:1fr}
  .grid-8-4{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .stack{grid-template-rows:auto auto}
  .steps{grid-template-columns:repeat(2,1fr);gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-band{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:767px){
  body{font-size:16px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:18px}
  .card-h{flex-direction:column}
  .card-h .thumb{width:100%;flex:none;height:150px}
  .accordion-body{padding-right:16px}
}
@media (max-width:575px){
  .container-x{padding:0 16px}
  .brand-text{font-size:15px}
  .header-inner{gap:14px;height:64px}
  .site-header.is-scrolled .header-inner{height:58px}
  .text-link{display:none}
  .btn-accent{height:38px;padding:0 15px;font-size:14px}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .filter-pill{height:36px;padding:0 14px;font-size:13.5px}
  .hero-media{aspect-ratio:4/3}
}

.reveal{opacity:1;transform:none}

/* roulang page: article */
:root{
  --brand-900:#0C2B22;
  --brand-700:#14513F;
  --accent:#C9F24D;
  --accent-ink:#12210A;
  --warm:#FF7A45;
  --bg:#FBFAF6;
  --bg-alt:#F2F1EA;
  --line:#E4E2D8;
  --text:#22302B;
  --text-2:#6C7A73;
  --white:#FFFFFF;
  --r-card:18px;
  --r-sm:14px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,43,34,.05);
  --sh-2:0 12px 28px rgba(12,43,34,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap:clamp(64px,9vw,128px);
  --container:1220px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Inter,"PingFang SC","Microsoft YaHei",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease)}
button,input{font-family:inherit}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section-gap{padding-top:var(--gap)}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--brand-900);
  color:#fff;
  box-shadow:inset 0 -1px 0 rgba(255,255,255,.08);
  transition:box-shadow .24s var(--ease);
}
.header-inner{display:flex;align-items:center;gap:16px;height:72px;transition:height .24s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.site-header.is-scrolled{box-shadow:inset 0 -1px 0 rgba(255,255,255,.14),0 10px 26px rgba(12,43,34,.22)}
.brand{display:flex;align-items:center;gap:10px;flex:none;color:#fff;font-weight:800}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--accent);color:var(--accent-ink);
  display:grid;place-items:center;font-size:15px;flex:none;
}
.brand-text{font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.header-channels{display:flex;align-items:center;gap:4px;margin-left:10px}
.channel-link{
  position:relative;padding:9px 12px;font-size:15px;letter-spacing:.02em;color:#C3D2CC;border-radius:10px;
}
.channel-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:3px;height:2px;border-radius:2px;background:var(--accent);
  transition:left .22s var(--ease),right .22s var(--ease);
}
.channel-link:hover{color:#fff}
.channel-link:hover::after,.channel-link.is-active::after{left:12px;right:12px}
.channel-link.is-active{color:#fff;font-weight:600}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-pill);
  transition:background-color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box i{font-size:13px;color:#9DB1AA}
.search-box input{width:160px;border:0;outline:0;background:transparent;color:#fff;font-size:14px}
.search-box input::placeholder{color:#9DB1AA}
.search-box:focus-within{background:#fff;border-color:#fff;box-shadow:0 0 0 3px rgba(201,242,77,.45)}
.search-box:focus-within i{color:var(--text-2)}
.search-box:focus-within input{color:var(--text)}
.search-box:focus-within input::placeholder{color:var(--text-2)}
.text-link{font-size:14.5px;color:#C3D2CC;padding:8px 4px}
.text-link:hover{color:var(--accent)}
.btn-accent,.btn-ghost,.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-accent{background:var(--accent);color:var(--accent-ink)}
.btn-accent:hover{background:#D9F96F;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,242,77,.32);color:var(--accent-ink)}
.btn-accent i{transition:transform .2s var(--ease)}
.btn-accent:hover i{transform:translateX(4px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.38);color:#fff}
.btn-ghost:hover{background:#fff;border-color:#fff;color:var(--brand-900);transform:translateY(-2px)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--text)}
.btn-outline:hover{border-color:var(--brand-700);color:var(--brand-700);transform:translateY(-2px)}
.btn-mini{height:38px;padding:0 18px;font-size:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:transparent;color:#fff;font-size:16px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent)}
.mobile-panel{display:none;background:var(--brand-900);border-top:1px solid rgba(255,255,255,.1);padding:10px 0 20px}
.mobile-panel.is-open{display:block}
.mobile-panel .channel-link{display:block;padding:13px 14px;font-size:16px;border-radius:12px}
.mobile-panel .channel-link::after{display:none}
.mobile-panel .channel-link.is-active,.mobile-panel .channel-link:hover{background:rgba(255,255,255,.07);color:#fff}
.mobile-extra{display:flex;flex-wrap:wrap;gap:10px;padding:14px 14px 0;border-top:1px solid rgba(255,255,255,.1);margin-top:10px}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--bg-alt);border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;padding:14px 0;font-size:13.5px;color:var(--text-2)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand-700)}
.crumb .sep{color:#C1BFB3}
.crumb .current{
  color:var(--text);font-weight:600;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- article head ---------- */
.article-head{padding:clamp(30px,4.6vw,54px) 0 0}
.cat-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--accent);color:var(--accent-ink);
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
}
.article-head h1{
  margin:20px 0 22px;max-width:960px;
  font-size:clamp(28px,4.4vw,50px);font-weight:800;letter-spacing:-.02em;line-height:1.2;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  padding-bottom:24px;border-bottom:1px solid var(--line);
  font-size:14px;color:var(--text-2);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px}
.article-meta .meta-item i{font-size:13px;color:var(--brand-700)}
.article-meta .mono{font-family:var(--mono);font-size:13px;letter-spacing:.04em}
.share-row{margin-left:auto;display:flex;align-items:center;gap:8px}
.share-row .share-label{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--text-2);text-transform:uppercase}
.share-btn{
  width:36px;height:36px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;
  color:var(--text-2);display:grid;place-items:center;font-size:14px;cursor:pointer;
  transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.share-btn:hover{transform:translateY(-2px);border-color:var(--accent);color:var(--brand-900);box-shadow:var(--sh-2)}

.article-cover{
  margin:clamp(24px,3vw,38px) 0 0;border-radius:var(--r-card);overflow:hidden;
  aspect-ratio:16/9;background:var(--bg-alt);
}
.article-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.article-cover:hover img{transform:scale(1.02)}

/* ---------- layout ---------- */
.article-layout{--bs-gutter-x:0;padding-top:clamp(40px,5.4vw,72px)}
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}

/* ---------- article body ---------- */
.article-body{max-width:780px;font-size:17px;line-height:1.9;color:#26332E}
.article-body > p:first-of-type{font-size:19px;line-height:1.8;color:#1C2A24}
.article-body h2{
  position:relative;margin:2.1em 0 .85em;padding-left:19px;
  font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.35;letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:5px;height:1.02em;border-radius:3px;background:var(--accent);
}
.article-body h3{margin:1.7em 0 .65em;font-size:20px;font-weight:700;line-height:1.45}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;font-weight:700;color:var(--brand-700)}
.article-body p{margin:0 0 1.2em}
.article-body ul,.article-body ol{margin:0 0 1.35em}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.55em}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--accent);
}
.article-body ol{counter-reset:num}
.article-body ol li{position:relative;padding-left:36px;margin-bottom:.6em;counter-increment:num}
.article-body ol li::before{
  content:counter(num,decimal-leading-zero);position:absolute;left:0;top:.05em;
  font-family:var(--mono);font-size:13px;font-weight:700;color:var(--brand-700);letter-spacing:.06em;
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--accent);
  background:var(--bg-alt);border-radius:0 12px 12px 0;color:#31403A;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:1.5em 0 .5em}
.article-body figure{margin:1.6em 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--text-2);text-align:center;line-height:1.6}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th{background:var(--brand-700);color:#fff;text-align:left;padding:12px 14px;font-weight:600}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);color:#2C3A34}
.article-body tbody tr:nth-child(even){background:#F8F7F1}
.article-body a{
  color:var(--brand-700);
  background:linear-gradient(transparent 64%,rgba(201,242,77,.55) 64%);
  border-bottom:1px solid currentColor;
}
.article-body a:hover{color:var(--brand-900);border-bottom-color:var(--accent)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

.empty-state{
  max-width:780px;padding:46px 32px;text-align:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.empty-state i{font-size:34px;color:var(--brand-700)}
.empty-state h3{margin:16px 0 10px;font-size:21px;font-weight:800}
.empty-state p{margin:0 auto 22px;max-width:46ch;font-size:15px;color:var(--text-2)}

/* ---------- tags ---------- */
.tag-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:38px;padding-top:24px;border-top:1px solid var(--line);
}
.tag-row .tag-title{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--text-2);text-transform:uppercase}
.tag{
  padding:6px 14px;border-radius:var(--r-pill);background:var(--bg-alt);color:var(--text-2);font-size:13px;
  transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.tag:hover{background:var(--accent);color:var(--accent-ink);transform:translateY(-2px)}

/* ---------- sidebar ---------- */
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.side-card h3{
  display:flex;align-items:center;gap:9px;margin:0 0 14px;
  font-size:15px;font-weight:700;letter-spacing:.01em;
}
.side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--accent)}
.hot-list li + li{border-top:1px solid var(--line)}
.hot-list a{display:flex;gap:12px;padding:11px 0;font-size:14.5px;color:#31403A;line-height:1.6}
.hot-list a:hover{color:var(--brand-700);transform:translateX(3px)}
.hot-rank{font-family:var(--mono);font-size:12px;color:var(--text-2);padding-top:2px;flex:none}
.spec-list{font-size:14px}
.spec-list li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line)}
.spec-list li:last-child{border-bottom:0}
.spec-list .k{color:var(--text-2)}
.spec-list .v{font-family:var(--mono);font-weight:600;color:var(--brand-700)}
.side-note{font-size:13.5px;line-height:1.75;color:var(--text-2)}

/* ---------- related ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{margin:0;font-size:clamp(22px,2.8vw,32px);font-weight:800;letter-spacing:-.01em}
.section-head .sub{margin-top:8px;font-size:14.5px;color:var(--text-2)}
.more-link{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--brand-700);font-weight:600;white-space:nowrap}
.more-link i{transition:transform .2s var(--ease)}
.more-link:hover i{transform:translateX(4px)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--accent)}
.post-card .thumb{aspect-ratio:3/2;overflow:hidden;background:var(--bg-alt)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.post-card:hover .thumb img{transform:scale(1.03)}
.post-card .card-inner{display:flex;flex-direction:column;gap:10px;flex:1;padding:18px 20px 20px}
.post-card .chip{
  align-self:flex-start;padding:4px 11px;border-radius:var(--r-pill);
  background:var(--bg-alt);color:var(--text-2);font-size:12px;letter-spacing:.06em;
}
.post-card h3{
  font-size:16.5px;font-weight:700;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card p{
  font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:12px;border-top:1px solid var(--line);
  font-family:var(--mono);font-size:12px;color:var(--text-2);letter-spacing:.04em;
}

/* ---------- prev / next ---------- */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:clamp(36px,4.6vw,56px)}
.pn-item{
  display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:18px 20px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.pn-item:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--sh-2)}
.pn-item .pn-ico{
  width:38px;height:38px;flex:none;border-radius:12px;display:grid;place-items:center;
  background:var(--bg-alt);color:var(--brand-700);font-size:15px;
}
.pn-item .pn-text{min-width:0}
.pn-item .pn-label{font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;color:var(--text-2);text-transform:uppercase}
.pn-item .pn-title{
  margin-top:4px;font-size:15px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.pn-item.next{justify-content:flex-end;text-align:right}
.back-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;isolation:isolate;
  margin-top:var(--gap);border-radius:24px;padding:clamp(32px,5vw,58px);
  display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;color:#fff;
}
.cta-band .cta-bg{position:absolute;inset:0;z-index:-2;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat}
.cta-band::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(96deg,rgba(12,43,34,.95) 0%,rgba(12,43,34,.74) 62%,rgba(12,43,34,.6) 100%);
}
.cta-band .cta-copy{max-width:620px}
.cta-band .cta-kicker{
  display:inline-flex;align-items:center;gap:8px;padding:5px 13px;border-radius:var(--r-pill);
  background:rgba(201,242,77,.16);color:var(--accent);
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
}
.cta-band h2{margin:16px 0 10px;font-size:clamp(24px,3vw,38px);font-weight:800;letter-spacing:-.02em;line-height:1.25}
.cta-band p{margin:0;font-size:15.5px;line-height:1.8;color:#C9D6D0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{margin-top:var(--gap);background:var(--brand-900);color:#C9D6D0}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding:clamp(48px,6vw,74px) 0 40px;
}
.footer-brand .brand{margin-bottom:0}
.footer-brand p{margin:16px 0 0;max-width:36ch;font-size:14.5px;line-height:1.8;color:#A6B8B2}
.footer-col h4{
  margin:0 0 16px;font-family:var(--mono);font-size:12px;font-weight:600;
  letter-spacing:.16em;color:#8CA29C;text-transform:uppercase;
}
.footer-col li{margin-bottom:10px}
.footer-col a{display:inline-block;font-size:14.5px;color:#C9D6D0}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-qr{
  display:flex;align-items:center;gap:12px;margin-top:18px;padding:12px 14px;
  border:1px dashed rgba(255,255,255,.22);border-radius:14px;
}
.footer-qr i{font-size:26px;color:var(--accent)}
.footer-qr span{font-size:13px;line-height:1.5;color:#A6B8B2}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding:20px 0 30px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#8CA29C;
}

/* ---------- responsive ---------- */
@media (max-width:1399.98px){
  .search-box input{width:132px}
}
@media (max-width:1199.98px){
  .header-channels{margin-left:4px}
  .channel-link{padding:9px 9px;font-size:14.5px}
  .search-box input{width:110px}
}
@media (max-width:991.98px){
  .header-channels,.search-box,.text-link{display:none}
  .nav-toggle{display:grid;place-items:center}
  .article-side{position:static;top:auto;margin-top:34px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .container-x{padding:0 16px}
  .article-body{font-size:16.5px;line-height:1.85}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .prevnext{grid-template-columns:minmax(0,1fr)}
  .pn-item.next{justify-content:flex-start;text-align:left;flex-direction:row-reverse}
  .share-row{margin-left:0;width:100%;padding-top:6px}
  .article-meta{padding-bottom:20px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-band{border-radius:20px}
}
@media (max-width:575.98px){
  .brand-text{font-size:15px}
  .brand-mark{width:30px;height:30px;border-radius:10px;font-size:13px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .article-head h1{margin:16px 0 18px}
  .empty-state{padding:36px 20px}
  .crumb .current{max-width:34ch}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .post-card:hover,.pn-item:hover,.share-btn:hover,.btn-accent:hover,.btn-ghost:hover,.btn-outline:hover{transform:none}
  .post-card:hover .thumb img,.article-cover:hover img{transform:none}
}

/* roulang page: category3 */
:root{
  --brand-900:#0C2B22;
  --brand-700:#14513F;
  --accent:#C9F24D;
  --accent-ink:#12210A;
  --warm:#FF7A45;
  --bg:#FBFAF6;
  --bg-alt:#F2F1EA;
  --line:#E4E2D8;
  --text:#22302B;
  --text-2:#6C7A73;
  --white:#FFFFFF;
  --radius-card:18px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(12,43,34,.05);
  --shadow-2:0 12px 28px rgba(12,43,34,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --space-section:clamp(64px,9vw,128px);
  --container:1220px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--brand-700)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono);letter-spacing:.16em;text-transform:uppercase}
.section{padding:var(--space-section) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--text-2);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--accent)}
h2{font-size:clamp(26px,3.4vw,44px);font-weight:800;letter-spacing:-.02em;line-height:1.18;color:var(--brand-900)}
.section-sub{color:var(--text-2);font-size:16px;max-width:62ch;margin-top:12px;line-height:1.8}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--white);
  border-bottom:1px solid transparent;
  transition:height .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 18px rgba(12,43,34,.05)}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;transition:height .22s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--brand-900);color:var(--accent);
  display:grid;place-items:center;font-size:16px;flex-shrink:0;
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--brand-900);white-space:nowrap}
.header-collapse{display:flex;align-items:center;gap:22px;flex:1;min-width:0}
.header-channels{display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
.channel-link{
  position:relative;display:inline-block;padding:8px 12px;font-size:15px;letter-spacing:.02em;
  color:var(--text);white-space:nowrap;border-radius:8px;
}
.channel-link::after{
  content:"";position:absolute;left:50%;bottom:2px;height:2px;width:0;background:var(--accent);
  border-radius:2px;transform:translateX(-50%);transition:width .24s var(--ease);
}
.channel-link:hover::after,.channel-link.is-active::after{width:calc(100% - 24px)}
.channel-link.is-active{color:var(--brand-900);font-weight:700}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{position:relative}
.search-box i{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--text-2);font-size:13px}
.search-box input{
  width:196px;height:42px;border-radius:999px;border:1px solid transparent;background:var(--bg-alt);
  padding:0 16px 0 38px;font-size:14px;transition:all .22s var(--ease);
}
.search-box input::placeholder{color:var(--text-2)}
.search-box input:focus{background:var(--white);border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,242,77,.35);outline:none}
.login-link{font-size:15px;color:var(--text-2);white-space:nowrap}
.login-link:hover{color:var(--brand-900)}
.btn-accent{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:var(--accent);color:var(--accent-ink);border:0;border-radius:999px;
  padding:11px 22px;font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.btn-accent:hover{color:var(--accent-ink);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:transparent;color:var(--brand-900);border:1.5px solid var(--brand-700);
  border-radius:999px;padding:11px 22px;font-size:15px;font-weight:700;
  transition:all .22s var(--ease);
}
.btn-ghost:hover{background:var(--brand-900);border-color:var(--brand-900);color:var(--accent)}
.btn-ghost-light{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:transparent;color:#EAF3EE;border:1.5px solid rgba(234,243,238,.55);
  border-radius:999px;padding:11px 22px;font-size:15px;font-weight:700;transition:all .22s var(--ease);
}
.btn-ghost-light:hover{background:rgba(255,255,255,.10);color:#fff;border-color:#fff}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;background:var(--bg-alt);
  color:var(--brand-900);font-size:17px;place-items:center;
}

/* ============ Hero ============ */
.hero-cover{
  position:relative;min-height:clamp(430px,50vw,560px);display:flex;align-items:flex-end;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;overflow:hidden;
}
.hero-cover::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,43,34,.28) 0%,rgba(12,43,34,.62) 100%);
}
.hero-inner{position:relative;z-index:2;padding:64px 0 56px;width:100%}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--accent-ink);
  border-radius:999px;padding:7px 16px;font-size:12px;font-weight:700;letter-spacing:.14em;
  font-family:var(--mono);text-transform:uppercase;margin-bottom:22px;
}
.hero-cover h1{
  color:#fff;font-size:clamp(32px,5vw,62px);font-weight:800;letter-spacing:-.03em;line-height:1.08;
  max-width:19ch;
}
.hero-cover .hero-lead{
  color:rgba(255,255,255,.86);font-size:clamp(15px,1.5vw,18px);line-height:1.8;
  max-width:56ch;margin-top:20px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;margin-top:44px;
  background:rgba(255,255,255,.18);border-radius:16px;overflow:hidden;max-width:820px;
}
.hero-stats .stat{background:rgba(12,43,34,.55);padding:20px 18px}
.hero-stats .stat b{
  display:block;font-family:var(--mono);font-size:clamp(20px,2.4vw,28px);font-weight:700;
  color:var(--accent);letter-spacing:.02em;
}
.hero-stats .stat span{display:block;font-size:12px;letter-spacing:.14em;color:rgba(255,255,255,.7);margin-top:6px;text-transform:uppercase}

/* ============ Tag bar ============ */
.tags-bar{background:var(--white);border-bottom:1px solid var(--line);padding:18px 0}
.tags-scroll{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none}
.tags-scroll::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;
  background:var(--bg-alt);color:var(--text-2);border:1px solid transparent;
  border-radius:999px;padding:8px 16px;font-size:13.5px;white-space:nowrap;
  transition:all .22s var(--ease);
}
.chip:hover{color:var(--brand-900);border-color:var(--accent);background:var(--white);transform:translateY(-2px)}
.chip.is-on{background:var(--brand-900);color:var(--accent);font-weight:600}
.chip i{font-size:12px}

/* ============ Cards ============ */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.media-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.media-card:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--shadow-2)}
.media-card .thumb{
  position:relative;aspect-ratio:3/2;overflow:hidden;background:var(--bg-alt);
}
.media-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.media-card:hover .thumb img{transform:scale(1.03)}
.media-card .thumb .badge-float{
  position:absolute;left:14px;top:14px;background:var(--accent);color:var(--accent-ink);
  border-radius:999px;padding:5px 12px;font-size:12px;font-weight:700;
  font-family:var(--mono);letter-spacing:.12em;text-transform:uppercase;
}
.media-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.media-card h3{font-size:19px;font-weight:700;color:var(--brand-900);line-height:1.4}
.media-card p{
  color:var(--text-2);font-size:14.5px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.media-card .meta{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--text-2);text-transform:uppercase;
}
.media-card .meta .arrow{
  width:30px;height:30px;border-radius:50%;background:var(--bg-alt);color:var(--brand-900);
  display:grid;place-items:center;transition:all .22s var(--ease);
}
.media-card:hover .meta .arrow{background:var(--accent);color:var(--accent-ink);transform:translateX(4px)}

/* ============ Sidebar ============ */
.side-col{position:relative}
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:24px}
.side-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
}
.side-card h3{
  font-size:15px;font-weight:700;color:var(--brand-900);margin-bottom:16px;
  display:flex;align-items:center;gap:9px;
}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--accent)}
.side-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.rank-list li{
  display:flex;align-items:center;gap:14px;padding:12px 0;border-bottom:1px dashed var(--line);
}
.rank-list li:last-child{border-bottom:0;padding-bottom:0}
.rank-list .num{
  font-family:var(--mono);font-size:13px;font-weight:700;color:var(--text-2);width:22px;flex-shrink:0;
}
.rank-list li:nth-child(1) .num,.rank-list li:nth-child(2) .num{color:var(--warm)}
.rank-list .name{font-size:14.5px;font-weight:600;color:var(--brand-900);line-height:1.4}
.rank-list .heat{
  margin-left:auto;font-family:var(--mono);font-size:12px;color:var(--text-2);letter-spacing:.06em;
}
.side-links li{margin-bottom:10px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14.5px;color:var(--text);padding:10px 14px;border-radius:12px;background:var(--bg-alt);
  transition:all .22s var(--ease);
}
.side-links a:hover{background:var(--brand-900);color:var(--accent)}
.side-links a i{font-size:12px;transition:transform .22s var(--ease)}
.side-links a:hover i{transform:translateX(3px)}
.sub-form{display:flex;flex-direction:column;gap:10px}
.sub-form input{
  height:48px;border-radius:14px;border:1px solid var(--line);background:var(--white);
  padding:0 16px;font-size:14.5px;transition:all .22s var(--ease);
}
.sub-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,242,77,.35);outline:none}
.form-note{font-size:13px;color:var(--text-2);line-height:1.7}

/* ============ Table ============ */
.table-wrap{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.table-scroll{overflow-x:auto}
table.spec{width:100%;border-collapse:collapse;min-width:680px}
table.spec thead th{
  background:var(--brand-700);color:#fff;font-size:13px;font-weight:600;letter-spacing:.1em;
  text-align:left;padding:16px 20px;font-family:var(--mono);text-transform:uppercase;white-space:nowrap;
}
table.spec tbody td{padding:18px 20px;font-size:14.5px;color:var(--text);border-top:1px solid var(--line)}
table.spec tbody tr:nth-child(even){background:var(--bg-alt)}
table.spec tbody td:first-child{font-weight:700;color:var(--brand-900);white-space:nowrap}
table.spec tbody td .tag-s{
  display:inline-block;background:rgba(201,242,77,.35);color:var(--accent-ink);
  border-radius:999px;padding:3px 11px;font-size:12.5px;font-weight:600;
}
table.spec tbody td .tag-w{
  display:inline-block;background:rgba(255,122,69,.14);color:#B8481C;
  border-radius:999px;padding:3px 11px;font-size:12.5px;font-weight:600;
}

/* ============ FAQ ============ */
.faq-list{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;text-align:left;font-size:17px;font-weight:600;color:var(--brand-900);
  transition:background .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-q:hover{background:var(--bg-alt)}
.faq-q .sign{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--bg-alt);color:var(--brand-900);
  display:grid;place-items:center;font-size:15px;line-height:1;transition:all .24s var(--ease);
}
.faq-q[aria-expanded="true"]{box-shadow:inset 3px 0 0 var(--accent);background:var(--bg-alt)}
.faq-q[aria-expanded="true"] .sign{background:var(--accent);color:var(--accent-ink);transform:rotate(180deg)}
.faq-a{padding:0 62px 24px 26px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-a-inner{padding-top:2px}

/* ============ CTA ============ */
.cta-band{
  position:relative;background:var(--brand-900);color:#fff;border-radius:24px;overflow:hidden;
  padding:clamp(38px,6vw,72px);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;opacity:.22;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-band h2{color:#fff;max-width:22ch}
.cta-band p{color:rgba(255,255,255,.78);margin-top:14px;max-width:52ch;font-size:15.5px;line-height:1.8}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ Footer ============ */
.site-footer{background:var(--brand-900);color:#C9D6D0;margin-top:var(--space-section);padding-top:clamp(48px,6vw,80px)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;color:#A9BBB3;max-width:34ch}
.footer-col h4{
  font-family:var(--mono);font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:#8FA79E;font-weight:600;margin-bottom:18px;
}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{font-size:14px;color:#C9D6D0;display:inline-block;transition:all .22s var(--ease)}
.footer-col ul li a:hover{color:var(--accent);transform:translateX(2px)}
.footer-qr{
  margin-top:20px;display:inline-flex;align-items:center;gap:12px;
  border:1px solid rgba(201,242,77,.35);border-radius:14px;padding:12px 16px;
  color:#C9D6D0;font-size:12.5px;line-height:1.5;
}
.footer-qr i{font-size:24px;color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA79E;
}

/* ============ Reveal ============ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ Responsive ============ */
@media (max-width:1199.98px){
  .search-box input{width:150px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:991.98px){
  .container-x{padding:0 18px}
  .nav-toggle{display:grid}
  .header-collapse{
    display:none;position:absolute;top:100%;left:0;right:0;background:var(--white);
    border-top:1px solid var(--line);box-shadow:0 16px 32px rgba(12,43,34,.10);
    padding:18px;flex-direction:column;align-items:stretch;gap:18px;
  }
  .header-collapse.is-open{display:flex}
  .header-channels{flex-direction:column;align-items:stretch;gap:2px}
  .channel-link{padding:12px 14px;border-radius:12px}
  .channel-link::after{display:none}
  .channel-link.is-active{background:var(--bg-alt)}
  .header-actions{margin-left:0;flex-direction:column;align-items:stretch;gap:12px}
  .search-box input{width:100%}
  .login-link{text-align:center;padding:6px 0}
  .hero-cover{min-height:auto}
  .hero-inner{padding:56px 0 44px}
  .hero-cover h1{max-width:100%}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .side-sticky{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));max-width:100%}
  .card-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .faq-q{padding:18px 18px;font-size:16px}
  .faq-a{padding:0 20px 20px 18px}
  .section-head{margin-bottom:28px}
  table.spec tbody td,table.spec thead th{padding:14px 16px}
}
@media (max-width:520px){
  .container-x{padding:0 16px}
  .brand-text{font-size:15.5px}
  .brand-mark{width:34px;height:34px;font-size:15px}
  .hero-cta .btn-accent,.hero-cta .btn-ghost-light{width:100%}
  .side-card{padding:20px}
  .media-card .body{padding:18px 18px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --brand-900:#0C2B22;
  --brand-700:#14513F;
  --accent:#C9F24D;
  --accent-ink:#12210A;
  --warm:#FF7A45;
  --bg:#FBFAF6;
  --bg-alt:#F2F1EA;
  --line:#E4E2D8;
  --text:#22302B;
  --text-2:#6C7A73;
  --white:#FFFFFF;
  --radius-card:18px;
  --radius-img:16px;
  --shadow-1:0 1px 2px rgba(12,43,34,.05);
  --shadow-2:0 12px 28px rgba(12,43,34,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --section-gap:clamp(64px,9vw,112px);
  --container:1220px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none}
a:hover{color:var(--brand-900)}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.2;color:var(--brand-900)}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--section-gap) 0}
.section-tight{padding:clamp(40px,6vw,72px) 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand-700);
  background:var(--bg-alt);
  border-radius:999px;
  padding:7px 14px;
}
.section-head{max-width:720px;margin-bottom:clamp(28px,4vw,48px)}
.section-head h2{font-size:clamp(26px,3.4vw,42px);margin:16px 0 14px;line-height:1.15}
.section-head p{color:var(--text-2);font-size:16.5px;max-width:64ch}

[data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--brand-900);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(12,43,34,.18);border-bottom-color:rgba(255,255,255,.10)}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;transition:height .22s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:#fff;font-weight:800;font-size:19px;letter-spacing:-.01em}
.brand:hover{color:#fff}
.brand-mark{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;
  background:var(--accent);color:var(--accent-ink);
  display:grid;place-items:center;font-size:15px;
}
.brand-text{white-space:nowrap}

.header-channels{display:flex;align-items:center;gap:24px}
.channel-link{
  position:relative;
  font-size:15px;letter-spacing:.02em;
  color:#C4D3CB;padding:6px 2px;
  transition:color .2s var(--ease);
}
.channel-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;width:0;height:2px;
  background:var(--accent);border-radius:2px;
  transform:translateX(-50%);
  transition:width .24s var(--ease);
}
.channel-link:hover{color:#fff}
.channel-link:hover::after{width:100%}
.channel-link.is-active{color:#fff}
.channel-link.is-active::after{width:100%}

.header-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.header-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border-radius:999px;
  background:rgba(255,255,255,.10);
  transition:background .2s var(--ease),box-shadow .2s var(--ease);
}
.header-search i{color:#9CB2A8;font-size:13px;transition:color .2s var(--ease)}
.header-search input{
  border:0;outline:0;background:transparent;width:148px;
  color:#fff;font-size:14px;font-family:inherit;
}
.header-search input::placeholder{color:#93A9A0}
.header-search:focus-within{background:#fff;box-shadow:0 0 0 2px var(--accent)}
.header-search:focus-within i{color:var(--brand-700)}
.header-search:focus-within input{color:var(--text)}
.header-search:focus-within input::placeholder{color:var(--text-2)}

.header-login{font-size:14.5px;color:#C4D3CB;transition:color .2s var(--ease)}
.header-login:hover{color:var(--accent)}

.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);color:var(--accent-ink);
  border:0;border-radius:999px;
  padding:11px 22px;font-size:14.5px;font-weight:700;
  letter-spacing:.01em;white-space:nowrap;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.btn-accent:hover{background:#D8FA6E;color:var(--accent-ink);transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,242,77,.24)}
.btn-accent i{transition:transform .2s var(--ease)}
.btn-accent:hover i{transform:translateX(4px)}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--brand-900);
  border:1.5px solid rgba(12,43,34,.22);border-radius:999px;
  padding:10px 22px;font-size:14.5px;font-weight:600;
  transition:border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost:hover{border-color:var(--brand-700);background:#fff;color:var(--brand-900);transform:translateY(-2px)}

.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:#EAF3EE;
  border:1.5px solid rgba(233,243,238,.32);border-radius:999px;
  padding:10px 22px;font-size:14.5px;font-weight:600;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost-light:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}

.header-cta{display:inline-flex}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:999px;
  background:rgba(255,255,255,.10);border:0;color:#fff;font-size:16px;
}
.nav-toggle:hover{background:rgba(255,255,255,.18)}

.mobile-drawer{
  display:none;
  border-top:1px solid rgba(255,255,255,.10);
  background:var(--brand-900);
  padding:16px 24px 24px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:block;color:#D6E3DC;font-size:16px;
  padding:12px 2px;border-bottom:1px solid rgba(255,255,255,.08);
}
.mobile-drawer a.is-active{color:var(--accent);font-weight:700}
.mobile-drawer .mobile-search{
  display:flex;align-items:center;gap:10px;margin:14px 0 18px;
  background:rgba(255,255,255,.10);border-radius:14px;padding:0 14px;height:46px;
}
.mobile-drawer .mobile-search input{background:transparent;border:0;outline:0;color:#fff;font-size:15px;width:100%}
.mobile-drawer .mobile-search input::placeholder{color:#93A9A0}

/* ---------- breadcrumb ---------- */
.crumb-bar{padding:22px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--text-2)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand-700)}
.crumb .sep{color:#C3C8BE}
.crumb .current{color:var(--brand-900);font-weight:700}

/* ---------- hero ---------- */
.guide-hero{padding:clamp(28px,4vw,44px) 0 clamp(40px,5vw,64px)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,56px);align-items:center}
.hero-copy h1{
  font-size:clamp(32px,4.6vw,58px);
  line-height:1.08;letter-spacing:-.03em;
  margin:18px 0 18px;
}
.hero-copy .lede{
  font-size:17.5px;line-height:1.8;color:#3B4A44;max-width:60ch;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-note{margin-top:16px;font-size:13px;color:var(--text-2);display:flex;align-items:center;gap:8px}
.hero-note i{color:var(--brand-700)}

.hero-figure{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  aspect-ratio:16/10;box-shadow:var(--shadow-1);border:1px solid var(--line);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.hero-figure:hover img{transform:scale(1.03)}
.hero-figure figcaption{
  position:absolute;left:16px;bottom:16px;
  background:rgba(12,43,34,.86);color:#E9F3EE;
  font-size:12.5px;letter-spacing:.04em;
  padding:8px 14px;border-radius:999px;
}

.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:14px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line);
}
.hero-stats li{display:flex;flex-direction:column;gap:4px}
.hero-stats strong{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:clamp(19px,2.2vw,24px);font-weight:700;color:var(--brand-900);letter-spacing:-.01em;
}
.hero-stats span{font-size:12px;letter-spacing:.06em;color:var(--text-2)}

/* ---------- guide layout ---------- */
.guide-layout{
  display:grid;grid-template-columns:250px minmax(0,1fr);gap:clamp(28px,4vw,56px);
  align-items:start;
}
.guide-toc{
  position:sticky;top:96px;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px 20px;box-shadow:var(--shadow-1);
}
.guide-toc h4{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--text-2);font-weight:600;margin-bottom:14px;
}
.toc-list li+li{margin-top:2px}
.toc-list a{
  display:block;position:relative;
  font-size:14.5px;color:#3B4A44;
  padding:9px 10px 9px 14px;border-radius:10px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.toc-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--accent);border-radius:3px;
  transition:height .22s var(--ease);
}
.toc-list a:hover{background:var(--bg-alt);color:var(--brand-900)}
.toc-list a:hover::before,.toc-list a.is-current::before{height:18px}
.toc-list a.is-current{color:var(--brand-900);font-weight:700;background:var(--bg-alt)}
.toc-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-2);line-height:1.7}

.guide-body{max-width:780px}
.guide-intro{
  font-size:19px;line-height:1.8;color:#33423C;
  padding:0 0 26px;border-bottom:1px solid var(--line);margin-bottom:36px;
}

.step{padding-bottom:38px;margin-bottom:38px;border-bottom:1px dashed var(--line)}
.step:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:0}
.step-num{
  display:flex;align-items:center;gap:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:clamp(34px,4.4vw,52px);font-weight:700;line-height:1;
  color:var(--brand-900);letter-spacing:.01em;margin-bottom:14px;
}
.step-num::after{content:"";flex:0 0 auto;width:40px;height:4px;border-radius:3px;background:var(--accent)}
.step h3{font-size:clamp(20px,2.2vw,24px);margin-bottom:12px}
.step p{color:#3B4A44;margin-bottom:14px}
.step p:last-child{margin-bottom:0}

.dot-list{margin:14px 0 0}
.dot-list li{position:relative;padding-left:20px;margin-bottom:9px;color:#3B4A44;font-size:15.5px;line-height:1.75}
.dot-list li::before{
  content:"";position:absolute;left:0;top:.7em;
  width:7px;height:7px;border-radius:2px;background:var(--accent);
}
.dot-list li strong{color:var(--brand-900)}

.tip-box{
  margin-top:16px;padding:16px 20px;
  background:var(--bg-alt);
  border-left:3px solid var(--accent);
  border-radius:0 14px 14px 0;
  font-size:15px;color:#4A5751;line-height:1.8;
}
.tip-box b{color:var(--brand-900)}

/* ---------- self-check + spec ---------- */
.check-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(26px,4vw,52px);
  align-items:center;margin-bottom:clamp(30px,4vw,48px);
}
.check-figure{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);aspect-ratio:3/2;box-shadow:var(--shadow-1)}
.check-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.check-figure:hover img{transform:scale(1.03)}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--line);
}
.check-list li:last-child{border-bottom:0}
.check-list i{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--brand-900);color:var(--accent);
  display:grid;place-items:center;font-size:12px;margin-top:3px;
}
.check-list span{font-size:15.5px;color:#3B4A44;line-height:1.75}
.check-list span b{color:var(--brand-900)}

.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--white);box-shadow:var(--shadow-1);
}
.spec-table{width:100%;min-width:760px;border-collapse:collapse;font-size:14.5px}
.spec-table thead th{
  background:var(--brand-700);color:#fff;
  font-weight:600;font-size:13px;letter-spacing:.06em;
  text-align:left;padding:15px 18px;white-space:nowrap;
}
.spec-table tbody td{
  padding:14px 18px;border-top:1px solid var(--line);color:#3B4A44;vertical-align:top;
}
.spec-table tbody tr:nth-child(even) td{background:#F7F6F0}
.spec-table tbody td:first-child{font-weight:700;color:var(--brand-900);white-space:nowrap}
.table-note{margin-top:14px;font-size:13px;color:var(--text-2);display:flex;gap:8px;align-items:flex-start}
.table-note i{color:var(--brand-700);margin-top:4px}

/* ---------- faq ---------- */
.faq-accordion .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0;
  transition:border-color .2s var(--ease);
}
.faq-accordion .accordion-item:has(.accordion-collapse.show){border-left:3px solid var(--accent);padding-left:16px}
.faq-accordion .accordion-button{
  background:transparent;box-shadow:none;color:var(--brand-900);
  font-size:17px;font-weight:700;line-height:1.6;
  padding:22px 6px 22px 0;letter-spacing:-.01em;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand-900);background:transparent;box-shadow:none}
.faq-accordion .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-accordion .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;
  font-size:20px;font-weight:600;color:var(--brand-700);
  margin-left:auto;transform:none;transition:transform .22s var(--ease),color .22s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"−";background-image:none;transform:rotate(180deg);color:var(--brand-900)}
.faq-accordion .accordion-body{padding:0 0 24px;font-size:15px;line-height:1.85;color:#4A5751;max-width:70ch}

/* ---------- related ---------- */
.related-bar{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.related-chip{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--white);border:1px solid var(--line);border-radius:999px;
  padding:10px 18px;font-size:14.5px;color:#3B4A44;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.related-chip i{color:var(--brand-700);font-size:12px;transition:transform .2s var(--ease)}
.related-chip:hover{border-color:var(--accent);color:var(--brand-900);transform:translateY(-3px);box-shadow:var(--shadow-2)}
.related-chip:hover i{transform:translateX(4px)}

/* ---------- cta ---------- */
.cta-band{
  background:var(--brand-900);color:#EAF3EE;
  border-radius:24px;padding:clamp(32px,5vw,60px);
  display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,36px);line-height:1.2;margin-bottom:14px}
.cta-band p{color:#B9CBC2;font-size:16px;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#C9D6D0;padding:clamp(48px,6vw,76px) 0 26px;margin-top:var(--section-gap)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:clamp(24px,4vw,48px)}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14.5px;line-height:1.8;color:#A9BCB4;max-width:38ch}
.footer-col h4{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:#8FA79D;font-weight:600;margin-bottom:16px;
}
.footer-col ul li+li{margin-top:10px}
.footer-col a{color:#C9D6D0;font-size:14.5px;transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-qr{
  margin-top:20px;display:inline-flex;align-items:center;gap:12px;
  background:rgba(255,255,255,.06);border-radius:14px;padding:12px 16px;
}
.footer-qr i{font-size:26px;color:var(--accent)}
.footer-qr span{font-size:12.5px;line-height:1.5;color:#A9BCB4}
.footer-bottom{
  margin-top:clamp(32px,4vw,52px);padding-top:22px;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8FA79D;
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .header-search input{width:120px}
  .header-channels{gap:18px}
}
@media (max-width:991.98px){
  .header-channels,.header-search,.header-login{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .header-inner{gap:16px}
  .hero-grid{grid-template-columns:1fr}
  .hero-figure{order:-1;aspect-ratio:16/9}
  .guide-layout{grid-template-columns:1fr}
  .guide-toc{position:relative;top:0;margin-bottom:8px}
  .check-grid{grid-template-columns:1fr}
  .check-figure{order:-1}
  .cta-band{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .container-x{padding:0 16px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:18px 14px}
  .hero-copy h1{font-size:clamp(28px,7.6vw,40px)}
  .hero-copy .lede{font-size:16.5px}
  .guide-intro{font-size:17.5px}
  .footer-grid{grid-template-columns:1fr}
  .related-chip{width:100%;justify-content:space-between}
}
@media (max-width:519.98px){
  .brand-text{font-size:15px}
  .brand-mark{width:30px;height:30px;font-size:13px}
  .hero-actions .btn-accent,.hero-actions .btn-ghost{width:100%}
  .cta-actions .btn-accent,.cta-actions .btn-ghost-light{width:100%}
  .step-num{font-size:34px}
  .step-num::after{width:26px;height:3px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  [data-reveal]{opacity:1;transform:none}
}